WO2012044020A2 - Cyclic olefin compound, photoreactive polymer and alignment layer comprising the same - Google Patents
Cyclic olefin compound, photoreactive polymer and alignment layer comprising the same Download PDFInfo
- Publication number
- WO2012044020A2 WO2012044020A2 PCT/KR2011/007059 KR2011007059W WO2012044020A2 WO 2012044020 A2 WO2012044020 A2 WO 2012044020A2 KR 2011007059 W KR2011007059 W KR 2011007059W WO 2012044020 A2 WO2012044020 A2 WO 2012044020A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carbon atoms
- substituted
- unsubstituted
- group
- norbornene
- Prior art date
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- 229920000642 polymer Polymers 0.000 title claims abstract description 213
- -1 Cyclic olefin compound Chemical class 0.000 title claims abstract description 106
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 39
- 125000004432 carbon atom Chemical group C* 0.000 claims description 185
- 238000000034 method Methods 0.000 claims description 125
- 239000000178 monomer Substances 0.000 claims description 83
- 238000006116 polymerization reaction Methods 0.000 claims description 81
- 125000003118 aryl group Chemical group 0.000 claims description 44
- 238000005984 hydrogenation reaction Methods 0.000 claims description 41
- 238000007142 ring opening reaction Methods 0.000 claims description 35
- 125000000217 alkyl group Chemical group 0.000 claims description 29
- 239000003054 catalyst Substances 0.000 claims description 29
- 229910052723 transition metal Inorganic materials 0.000 claims description 23
- 150000003624 transition metals Chemical class 0.000 claims description 23
- 239000012041 precatalyst Substances 0.000 claims description 22
- 239000000126 substance Substances 0.000 claims description 20
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 19
- 125000000524 functional group Chemical group 0.000 claims description 19
- 229910052760 oxygen Inorganic materials 0.000 claims description 19
- 239000001301 oxygen Substances 0.000 claims description 19
- 229910052717 sulfur Inorganic materials 0.000 claims description 19
- 239000011593 sulfur Substances 0.000 claims description 19
- 125000002947 alkylene group Chemical group 0.000 claims description 18
- 125000000732 arylene group Chemical group 0.000 claims description 18
- 229910052736 halogen Inorganic materials 0.000 claims description 18
- 150000002367 halogens Chemical class 0.000 claims description 18
- 229910052739 hydrogen Inorganic materials 0.000 claims description 18
- 239000001257 hydrogen Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 14
- 125000003545 alkoxy group Chemical group 0.000 claims description 13
- 125000000304 alkynyl group Chemical group 0.000 claims description 12
- 125000003342 alkenyl group Chemical group 0.000 claims description 11
- 125000004419 alkynylene group Chemical group 0.000 claims description 11
- 125000004450 alkenylene group Chemical group 0.000 claims description 10
- 125000004104 aryloxy group Chemical group 0.000 claims description 10
- 125000002993 cycloalkylene group Chemical group 0.000 claims description 10
- 125000001072 heteroaryl group Chemical group 0.000 claims description 10
- 229910052800 carbon group element Inorganic materials 0.000 claims description 9
- 125000005842 heteroatom Chemical group 0.000 claims description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 8
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052796 boron Inorganic materials 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000007151 ring opening polymerisation reaction Methods 0.000 claims description 7
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- 125000004171 alkoxy aryl group Chemical group 0.000 claims description 5
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 125000001118 alkylidene group Chemical group 0.000 claims description 4
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 125000005549 heteroarylene group Chemical group 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- 125000003518 norbornenyl group Chemical group C12(C=CC(CC1)C2)* 0.000 claims description 4
- 238000012644 addition polymerization Methods 0.000 claims description 3
- 125000005708 carbonyloxy group Chemical group [*:2]OC([*:1])=O 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 30
- 230000010287 polarization Effects 0.000 abstract description 18
- 238000002360 preparation method Methods 0.000 description 78
- NOMIBXHDUFXXLS-UHFFFAOYSA-N bicyclo[2.2.1]hept-2-ene;3-(4-phenylmethoxyphenyl)prop-2-enoic acid Chemical compound C1C2CCC1C=C2.C1=CC(C=CC(=O)O)=CC=C1OCC1=CC=CC=C1 NOMIBXHDUFXXLS-UHFFFAOYSA-N 0.000 description 68
- 239000000047 product Substances 0.000 description 35
- 125000001424 substituent group Chemical group 0.000 description 29
- MKOSBHNWXFSHSW-UHFFFAOYSA-N bicyclo[2.2.1]hept-2-en-5-ol Chemical compound C1C2C(O)CC1C=C2 MKOSBHNWXFSHSW-UHFFFAOYSA-N 0.000 description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 20
- 230000005855 radiation Effects 0.000 description 19
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 16
- 150000001875 compounds Chemical class 0.000 description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- ZVTWZSXLLMNMQC-UHFFFAOYSA-N 4-phenylmethoxybenzaldehyde Chemical compound C1=CC(C=O)=CC=C1OCC1=CC=CC=C1 ZVTWZSXLLMNMQC-UHFFFAOYSA-N 0.000 description 12
- 125000003710 aryl alkyl group Chemical group 0.000 description 11
- 239000010408 film Substances 0.000 description 11
- 150000007527 lewis bases Chemical class 0.000 description 11
- 239000002879 Lewis base Substances 0.000 description 10
- 239000008199 coating composition Substances 0.000 description 10
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 9
- 150000003254 radicals Chemical class 0.000 description 9
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 8
- 239000012190 activator Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- XEXSMVJGDKVOLJ-UHFFFAOYSA-N bicyclo[2.2.1]hept-2-ene;3-[4-[(4-bromophenyl)methoxy]phenyl]prop-2-enoic acid Chemical compound C1C2CCC1C=C2.C1=CC(C=CC(=O)O)=CC=C1OCC1=CC=C(Br)C=C1 XEXSMVJGDKVOLJ-UHFFFAOYSA-N 0.000 description 6
- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical compound B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910052707 ruthenium Inorganic materials 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 239000002585 base Substances 0.000 description 5
- IZYSDIITAFQCEI-UHFFFAOYSA-N bicyclo[2.2.1]hept-2-ene;3-[4-[(4-fluorophenyl)methoxy]phenyl]prop-2-enoic acid Chemical compound C1C2CCC1C=C2.C1=CC(C=CC(=O)O)=CC=C1OCC1=CC=C(F)C=C1 IZYSDIITAFQCEI-UHFFFAOYSA-N 0.000 description 5
- BJXIJFJTFRQKHO-UHFFFAOYSA-N bicyclo[2.2.1]hept-2-ene;3-[4-[(4-methoxyphenyl)methoxy]phenyl]prop-2-enoic acid Chemical compound C1C2CCC1C=C2.C1=CC(OC)=CC=C1COC1=CC=C(C=CC(O)=O)C=C1 BJXIJFJTFRQKHO-UHFFFAOYSA-N 0.000 description 5
- JIQWTBQLJLLAFX-UHFFFAOYSA-N bicyclo[2.2.1]hept-2-ene;3-[4-[(4-methylphenyl)methoxy]phenyl]prop-2-enoic acid Chemical compound C1C2CCC1C=C2.C1=CC(C)=CC=C1COC1=CC=C(C=CC(O)=O)C=C1 JIQWTBQLJLLAFX-UHFFFAOYSA-N 0.000 description 5
- MWZPCYQBGZMIEU-UHFFFAOYSA-N bicyclo[2.2.1]hept-2-ene;3-phenylprop-2-enoic acid Chemical compound C1C2CCC1C=C2.OC(=O)C=CC1=CC=CC=C1 MWZPCYQBGZMIEU-UHFFFAOYSA-N 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 5
- 229940114081 cinnamate Drugs 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000003999 initiator Substances 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- WBYWAXJHAXSJNI-VOTSOKGWSA-M trans-cinnamate Chemical compound [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 5
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- CPOFMOWDMVWCLF-UHFFFAOYSA-N methyl(oxo)alumane Chemical compound C[Al]=O CPOFMOWDMVWCLF-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Natural products P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzenecarboxaldehyde Natural products O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 3
- 229910000085 borane Inorganic materials 0.000 description 3
- 238000003776 cleavage reaction Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 239000003446 ligand Substances 0.000 description 3
- 125000005647 linker group Chemical group 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 3
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 230000007017 scission Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 150000003623 transition metal compounds Chemical class 0.000 description 3
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- LWRBVKNFOYUCNP-UHFFFAOYSA-N 2-methyl-1-(4-methylsulfanylphenyl)-2-morpholin-4-ylpropan-1-one Chemical compound C1=CC(SC)=CC=C1C(=O)C(C)(C)N1CCOCC1 LWRBVKNFOYUCNP-UHFFFAOYSA-N 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- HCMSDYVKYZIYGA-UHFFFAOYSA-N 3-(4-phenylmethoxyphenyl)prop-2-enoic acid Chemical compound C1=CC(C=CC(=O)O)=CC=C1OCC1=CC=CC=C1 HCMSDYVKYZIYGA-UHFFFAOYSA-N 0.000 description 2
- NSTVHFOHEYKXRQ-UHFFFAOYSA-N 4-bicyclo[2.2.1]hept-2-enylmethanol Chemical compound C1CC2C=CC1(CO)C2 NSTVHFOHEYKXRQ-UHFFFAOYSA-N 0.000 description 2
- QHJIJNGGGLNBNJ-UHFFFAOYSA-N 5-ethylbicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(CC)CC1C=C2 QHJIJNGGGLNBNJ-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- MPIAGWXWVAHQBB-UHFFFAOYSA-N [3-prop-2-enoyloxy-2-[[3-prop-2-enoyloxy-2,2-bis(prop-2-enoyloxymethyl)propoxy]methyl]-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(COC(=O)C=C)(COC(=O)C=C)COCC(COC(=O)C=C)(COC(=O)C=C)COC(=O)C=C MPIAGWXWVAHQBB-UHFFFAOYSA-N 0.000 description 2
- 238000010669 acid-base reaction Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 125000005234 alkyl aluminium group Chemical group 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 125000000051 benzyloxy group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])O* 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 2
- FJKIXWOMBXYWOQ-UHFFFAOYSA-N ethenoxyethane Chemical compound CCOC=C FJKIXWOMBXYWOQ-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- 239000012788 optical film Substances 0.000 description 2
- ZRSNZINYAWTAHE-UHFFFAOYSA-N p-methoxybenzaldehyde Chemical compound COC1=CC=C(C=O)C=C1 ZRSNZINYAWTAHE-UHFFFAOYSA-N 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 230000037048 polymerization activity Effects 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 229930195734 saturated hydrocarbon Natural products 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- POILWHVDKZOXJZ-ARJAWSKDSA-M (z)-4-oxopent-2-en-2-olate Chemical compound C\C([O-])=C\C(C)=O POILWHVDKZOXJZ-ARJAWSKDSA-M 0.000 description 1
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- 238000007106 1,2-cycloaddition reaction Methods 0.000 description 1
- NLWCWEGVNJVLAX-UHFFFAOYSA-N 1-methoxy-2-phenylbenzene Chemical group COC1=CC=CC=C1C1=CC=CC=C1 NLWCWEGVNJVLAX-UHFFFAOYSA-N 0.000 description 1
- 125000006017 1-propenyl group Chemical group 0.000 description 1
- YIJYFLXQHDOQGW-UHFFFAOYSA-N 2-[2,4,6-trioxo-3,5-bis(2-prop-2-enoyloxyethyl)-1,3,5-triazinan-1-yl]ethyl prop-2-enoate Chemical compound C=CC(=O)OCCN1C(=O)N(CCOC(=O)C=C)C(=O)N(CCOC(=O)C=C)C1=O YIJYFLXQHDOQGW-UHFFFAOYSA-N 0.000 description 1
- RETXELOTCDBGAA-UHFFFAOYSA-N 2-[[4-(4-fluorophenoxy)phenyl]methoxy]benzaldehyde Chemical compound C1=CC(F)=CC=C1OC(C=C1)=CC=C1COC1=CC=CC=C1C=O RETXELOTCDBGAA-UHFFFAOYSA-N 0.000 description 1
- 125000004974 2-butenyl group Chemical group C(C=CC)* 0.000 description 1
- SZIFAVKTNFCBPC-UHFFFAOYSA-N 2-chloroethanol Chemical compound OCCCl SZIFAVKTNFCBPC-UHFFFAOYSA-N 0.000 description 1
- FHMDTYSXDYQHMO-UHFFFAOYSA-N 3-[4-[(4-bromophenyl)methoxy]phenyl]prop-2-enoic acid Chemical compound C1=CC(C=CC(=O)O)=CC=C1OCC1=CC=C(Br)C=C1 FHMDTYSXDYQHMO-UHFFFAOYSA-N 0.000 description 1
- KOLALLMUHXRTGD-UHFFFAOYSA-N 3-[4-[(4-fluorophenyl)methoxy]phenyl]prop-2-enoic acid Chemical compound C1=CC(C=CC(=O)O)=CC=C1OCC1=CC=C(F)C=C1 KOLALLMUHXRTGD-UHFFFAOYSA-N 0.000 description 1
- 125000004975 3-butenyl group Chemical group C(CC=C)* 0.000 description 1
- HGCGRPJQAXHMMI-UHFFFAOYSA-N 4-[(4-bromophenyl)methoxy]benzaldehyde Chemical compound C1=CC(Br)=CC=C1COC1=CC=C(C=O)C=C1 HGCGRPJQAXHMMI-UHFFFAOYSA-N 0.000 description 1
- QGULWBQOCMQNFD-UHFFFAOYSA-N 4-[(4-fluorophenyl)methoxy]benzaldehyde Chemical compound C1=CC(F)=CC=C1COC1=CC=C(C=O)C=C1 QGULWBQOCMQNFD-UHFFFAOYSA-N 0.000 description 1
- HHHSHAZGHYCUPP-UHFFFAOYSA-N 4-[(4-methoxyphenyl)methoxy]benzaldehyde Chemical compound C1=CC(OC)=CC=C1COC1=CC=C(C=O)C=C1 HHHSHAZGHYCUPP-UHFFFAOYSA-N 0.000 description 1
- PQBHYFMKHRCUDY-UHFFFAOYSA-N 4-[(4-methylphenyl)methoxy]benzaldehyde Chemical compound C1=CC(C)=CC=C1COC1=CC=C(C=O)C=C1 PQBHYFMKHRCUDY-UHFFFAOYSA-N 0.000 description 1
- 125000006043 5-hexenyl group Chemical group 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 0 C**BC=Cc1c(*)c(*)c(*)c(*)c1* Chemical compound C**BC=Cc1c(*)c(*)c(*)c(*)c1* 0.000 description 1
- PMPVIKIVABFJJI-UHFFFAOYSA-N Cyclobutane Chemical compound C1CCC1 PMPVIKIVABFJJI-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
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- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
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Classifications
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2602/00—Systems containing two condensed rings
- C07C2602/36—Systems containing two condensed rings the rings having more than two atoms in common
- C07C2602/42—Systems containing two condensed rings the rings having more than two atoms in common the bicyclo ring system containing seven carbon atoms
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G2261/10—Definition of the polymer structure
- C08G2261/14—Side-groups
- C08G2261/142—Side-chains containing oxygen
- C08G2261/1426—Side-chains containing oxygen containing carboxy groups (COOH) and/or -C(=O)O-moieties
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- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
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- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
- C08G2261/33—Monomer units or repeat units incorporating structural elements in the main chain incorporating non-aromatic structural elements in the main chain
- C08G2261/332—Monomer units or repeat units incorporating structural elements in the main chain incorporating non-aromatic structural elements in the main chain containing only carbon atoms
- C08G2261/3324—Monomer units or repeat units incorporating structural elements in the main chain incorporating non-aromatic structural elements in the main chain containing only carbon atoms derived from norbornene
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- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/40—Polymerisation processes
- C08G2261/41—Organometallic coupling reactions
- C08G2261/418—Ring opening metathesis polymerisation [ROMP]
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
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- Y10T428/31855—Of addition polymer from unsaturated monomers
Definitions
- the present invention relates to a cyclic olefin compound, a photoreactive polymer, and an alignment layer comprising the same and, more particularly, to a cyclic olefin compound, a photoreactive polymer, a preparation method for the same, and an alignment layer comprising the photoreactive polymer, where the cyclic olefin compound can be used to provide the photoreactive polymer having not only excellences in liquid crystal alignment and alignment rate but also readiness for change in the alignment direction depending on the polarization direction.
- TFT-LCDs TFT-driven thin film transistor LCDs of which each pixel is independently driven are much superior in response speed of liquid crystals, realizing high-definition motion pictures, and thus increasingly used in a wider range of applications.
- liquid crystals are required to be initially aligned in a defined direction on a layer including innermost TFT of the display cell. For this, a liquid crystal alignment layer is used.
- a heat-resistant polymer such as polyimide is applied on a transparent glass to form a polymer alignment layer, which is then subjected to a rubbing process using a rotary roller wound with a rubbing cloth of nylon or rayon fabrics at a high rotation speed to align liquid crystals.
- the rubbing process remains mechanical scratches on the surface of the liquid crystal alignment layer or generates strong static electricity, possibly destroying the TFTs. Further, fine fibers coming from the rubbing cloth may cause defectives, which become an obstacle to acquiring a higher production yield.
- Photo-alignment refers to the mechanism using a linearly polarized UV radiation to cause the photoreactive groups of a defined photoreactive polymer to participate in a photoreaction, aligning the main chain of the polymer in a defined direction to form a photo-polymerized liquid crystal alignment layer with aligned liquid crystals.
- the representative example of the photo-alignment is photopolymerization-based photo-alignment as disclosed by M. Schadt et al.
- the photo-aligned polymers used in these patent and research papers are mostly polycinnamate-based polymers, such as poly(vinylcinnamate) (PVCN) or polyvinyl methoxycinnamate) (PVMC).
- PVCN poly(vinylcinnamate)
- PVMC polyvinyl methoxycinnamate
- cyclobutane For photo-alignment of polymers, the double bond of cinnamate exposed to UV radiation participates in a [2+2] cycloaddition reaction to form cyclobutane, which provides anisotropy to cause liquid crystal molecules aligned in one direction, inducing liquid crystal alignment.
- JP11-181127 discloses a polymer and an alignment layer including the same in which the polymer has a side chain including photoreactive groups such as cinnamate on a main chain such as acrylate, methacrylate, etc.
- Korean Patent Laid-Open Publication No. 2002-0006819 also discloses the use of an alignment layer comprising a polymethacryl-based polymer.
- the above-mentioned conventional photoreactive polymers for alignment layer have a low thermal stability of the polymer main chain, undesirably deteriorating the stability of the alignment layer or providing poor characteristics in regard to photoreactivity, liquid crystal alignment, or alignment rate.
- the present invention provides a cyclic olefin compound used to prepare a photoreactive polymer having not only excellences in liquid crystal alignment and alignment rate but also readiness for change in the alignment direction depending on the polarization direction.
- the present invention provides a photoreactive polymer and a preparation method for the same, where the photoreactive polymer has not only excellences in liquid crystal alignment and alignment rate but also readiness for change in the alignment direction depending on the polarization direction.
- the present invention also provides an alignment layer and a display device that comprise the photoreactive polymer.
- the present invention provides a cyclic olefin compound having a photoreactive group as represented by the following formula 1 :
- q is an integer from 0 to 4; and at least one of R ,
- R2, R3 and R4 is any one selected from the group consisting of radicals of the following formula 1a or 1b.
- the remainders other than the radical of the formula 1a or 1b are the same as or different from one another and independently selected from the group consisting of hydrogen; halogen; substituted or unsubstituted linear or branched alkyl having 1 to 20 carbon atoms; substituted or unsubstituted linear or branched alkenyl having 2 to 20 carbon atoms; substituted or unsubstituted linear or branched alkynyl having 2 to 20 carbon atoms; substituted or unsubstituted cycloalkyi having 3 to 12 carbon atoms; substituted or unsubstituted aryl having 6 to 40 carbon atoms; and a polar functional group comprising at least one of oxygen, nitrogen, phosphor, sulfur, silicon, and boron.
- R1 to R4 are not hydrogen, halogen, or a polar functional group
- at least one of a R1 and R2 coordination and a R3 and R4 coordination is bonded to each other to form an alkylidene group having 1 to 10 carbon atoms; or R1 or R2 is bonded to either R3 or R4 to form a saturated or unsaturated aliphatic ring having 4 to 12 carbon atoms or an aromatic ring having 6 to 24 carbon atoms.
- A is chemical bond, oxygen, sulfur, or - NH-.
- B is selected from the group consisting of chemical bond, substituted or unsubstituted alkylene having 1 to 20 carbon atoms, carbonyl, carboxy, ester, substituted or unsubstituted arylene having 6 to 40 carbon atoms, and ' substituted or unsubstituted heteroarylene having 6 to 40 carbon atoms.
- X is oxygen or sulfur.
- R9 is selected from the group consisting of chemical bond, substituted or unsubstituted alkylene having 1 to 20 carbon atoms, substituted or unsubstituted alkenylene having 2 to 20 carbon atoms, substituted or unsubstituted cycloalkylene having 3 to 12 carbon atoms, substituted or unsubstituted arylene having 6 to 40 carbon atoms, substituted or unsubstituted aralkylene having 7 to 15 carbon atoms, and substituted or unsubstituted alkynylene having 2 to 20 carbon atoms.
- At least one of R10 to R14 is a radical represented by -L-R15-R16-(substituted or unsubstituted C6-C40 aryl).
- the remainders other than the radical of -L-R15-R16- (substituted or unsubstituted C6-C40 aryl) are the same as or different from one another and independently selected from the group consisting of hydrogen; halogen; substituted or unsubstituted alkyl having 1 to 20 carbon atoms; substituted or unsubstituted alkoxy having 1 to 20 carbon atoms; substituted or unsubstituted aryloxy having 6 to 30 carbon atoms; substituted or unsubstituted aryl having 6 to 40 carbon atoms; and heteroaryl having 6 to 40 carbon atoms with a hetero element in Group 14, 15 or 16.
- L is selected from the group consisting of oxygen, sulfur, -NH-, substituted or unsubstituted alkylene having 1 to 20 carbon atoms, carbonyl, carboxy, -CONH-, and substituted or unsubstituted arylene having 6 to 40 carbon atoms.
- R15 is substituted or unsubstituted alkyl having 1 to 10 carbon atoms.
- the present invention also provides a photoreactive polymer comprising a repeating unit of the following formula 3a or 3b:
- the present invention also provides a method for preparing a photoreactive polymer comprising a repeating unit of the formula 3a, which method comprises performing an addition polymerization reaction using a monomer represented by the following formula 1 in the presence of a catalyst composition comprising a precatalyst containing a transition metal in Group 10 and a cocatalyst to form the repeating unit of the formula 3a:
- the present invention also provides a method for preparing a photoreactive polymer comprising a repeating unit of the formula 3b, which method comprises performing a ring-opening polymerization reaction using a monomer represented by the following formula 1 in the presence of a catalyst composition comprising a precatalyst containing a transition metal in Group 4, 6 or 8 and a cocatalyst to form the repeating unit of the formula 3b.
- the present invention also provides an alignment layer comprising the photoreactive polymer.
- the present invention also provides a liquid crystal retardation film that comprises the alignment layer and a liquid crystal layer on the alignment layer.
- the present invention also provides a display device comprising the alignment layer.
- the photoreactive polymer obtained from the cyclic olefin compound of the present invention has the end of its photoreactive group being bonded to a bulky substituent including aralkyl.
- the existence of the bulky substituent allows the photoreactive polymer far superior in liquid crystal alignment and alignment rate to the existing photoreactive polymers.
- the photoreactive polymer contains photoreactive groups freely movable, so the alignment direction is considerably flexible depending on the polarization direction.
- the photoreactive polymer and the alignment layer comprising the photoreactive polymer can be preferably applied to patterned retarders, patterned cell alignment layers, etc. used to realize three-dimensional images.
- the photoreactive polymer can be preferably used as a photo-aligned polymer in various coating compositions and alignment layers formed from the coating compositions applicable to various LCD devices, and the alignment layer comprising the photoreactive polymer has excellent characteristics.
- FIG. 1 is a schematic diagram showing an exemplary structure of a general alignment layer.
- FIG. 2 shows photographs of alignment layers using the polymers of Comparative Example and Example in experimental examples after first and second alignments achieved by changing the polarization direction.
- FIG. 3 show graphs describing the change of anisotropy of alignment layers using the polymers of Comparative Examples and Examples in experimental examples after first and second alignments achieved by changing the polarization direction.
- q is an integer from 0 to 4; and at least one of R1 , R2, R3 and R4 is any one selected from the group consisting of radicals of the following formula 1a and 1 b.
- the remainders other than the radical of the formula 1a or 1 b are the same as or different from one another and independently selected from the group consisting of hydrogen; halogen; substituted or unsubstituted linear or branched alkyl having 1 to 20 carbon atoms; substituted or unsubstituted linear or branched alkenyl having 2 to 20 carbon atoms; substituted or unsubstituted linear or branched alkynyl having 2 to 20 carbon atoms; substituted or unsubstituted cycloalkyi having 3 to 12 carbon atoms; substituted or unsubstituted aryl having 6 to 40 carbon atoms; and a polar functional group comprising at least one of oxygen, nitrogen, phosphor, sulfur
- R1 to R4 are not hydrogen, halogen, or a polar functional group
- at least one of a R1 and R2 coordination and a R3 and R4 coordination is bonded to each other to form an alkylidene group having 1 to 10 carbon atoms; or R1 or R2 is bonded to either R3 or R4 to form a saturated or unsaturated aliphatic ring having 4 to 12 carbon atoms or an aromatic ring having 6 to 24 carbon atoms.
- A is chemical bond, oxygen, sulfur, or - NH-.
- B is selected from the group consisting of chemical bond, substituted or unsubstituted alkylene having 1 to 20 carbon atoms, carbonyl, carboxy, ester, substituted or unsubstituted arylene having 6 to 40 carbon atoms, and substituted or unsubstituted heteroarylene having 6 to 40 carbon atoms.
- X is oxygen or sulfur.
- R9 is selected from the group consisting of chemical bond, substituted or unsubstituted alkylene having 1 to 20 carbon atoms, substituted or unsubstituted alkenylene having 2 to 20 carbon atoms, substituted or unsubstituted cycloalkylene having 3 to 12 carbon atoms, substituted or unsubstituted arylene having 6 to 40 carbon atoms, substituted or unsubstituted aralkylene having 7 to 15 carbon atoms, and substituted or unsubstituted alkynylene having 2 to 20 carbon atoms.
- At least one of R10 to R14 is a radical represented by -L-R 5-R16-(substituted or unsubstituted C6-C40 aryl).
- the remainders other than the radical of -L-R15-R16- (substituted or unsubstituted C6-C40 aryl) are the same as or different from one another and independently selected from the group consisting of hydrogen; halogen; substituted or unsubstituted alkyl having 1 to 20 carbon atoms; substituted or unsubstituted alkoxy having 1 to 20 carbon atoms; substituted or unsubstituted aryloxy having 6 to 30 carbon atoms; substituted or unsubstituted aryl having 6 to 40 carbon atoms; and heteroaryl having 6 to 40 carbon atoms with a hetero element in Group 14, 15 or 16.
- L is selected from the group consisting of oxygen, sulfur, -NH-, substituted or unsubstituted alkylene having 1 to 20 carbon atoms, carbonyl, carboxy, -CONH-, and substituted or unsubstituted arylene having 6 to 40 carbon atoms.
- R15 is substituted or unsubstituted alkyl having 1 to 10 carbon atoms.
- R 5 and R16 are as defined in formula 1 ; and R17 to R21 are the same as or different from one another and independently selected from the group consisting of hydrogen; halogen; substituted or unsubstituted alkyl having 1 to 20 carbon atoms; substituted or unsubstituted alkoxy having 1 to 20 carbon atoms; substituted or unsubstituted aryloxy having 6 to 30 carbon atoms; substituted or unsubstituted aryl having 6 to 40 carbon atoms; heteroaryl having 6 to 40 carbon atoms with a hetero element in Group 14, 15 or 16; and substituted or unsubstituted alkoxyaryl having 6 to 40 carbon atoms.
- Such a compound has a chemical structure in which the ends of photoreactive groups such as cinnamate are bonded to a substituent represented by -L-R15-R16-(substituted or unsubstituted C6-C40 aryl).
- the substituent comprises an aralkyl structure that alkyl and aryl groups are sequentially connected together via a linker L.
- Such a bulky chemical structure as aralkyl is connected to the ends of photoreactive groups via a linker L, confirming the formation of a large free volume between the photoreactive groups. This seems likely to be caused by the steric hindrance between adjacent bulky aralkyl structures.
- photoreactive groups such as cinnamate in the photoreactive polymer and the alignment layer prepared using the cyclic olefin compound are relatively free to move (flow) or react in such a large free volume, minimizing hindrance from other reactors or substituents. Consequently, the photoreactive groups in the photoreactive polymer and the alignment layer can have excellences in photoreactivity, alignment rate, and photo-alignment. Especially, photoreactive groups such as cinnamate undergo photo-alignment, which takes place as a simultaneous occurrence of dimerization and isomerization caused by polarized radiation. The photo-alignment occurs more easily and rapidly without any hindrance in the large free volume.
- the photoreactive polymer and the alignment layer prepared from the cyclic olefin compound are enabled to have better excellences in photoreactivity, alignment, and alignment rate.
- the existence of the large free volume between adjacent photoreactive groups allows the photoreactive groups relatively free to change the alignment direction depending on the change in the polarization direction. Consequently, the alignment direction may be easily changed according to the polarization direction, and the photoreactive polymer can be preferably applied to patterned retarders, patterned cell alignment layers, or the like that are used to create stereoscopic images.
- the cyclic olefin compound possesses not only excellences in liquid crystal alignment and alignment rate but also readiness for change in the alignment direction depending on the polarization direction, thereby providing a photoreactive polymer applicable to various alignment layers.
- a polar functional group used as a substituent for the R1 to R4 that is, a polar functional group including at least one of oxygen, nitrogen, phosphor, sulfur, silicon, and boron may be selected from the group consisting of the following functional groups, or otherwise, comprise at least one of oxygen, nitrogen, phosphor, sulfur, silicon, and boron:
- R5 is substituted or unsubstituted linear or branched alkylene having 1 to 20 carbon atoms; substituted or unsubstituted linear or branched alkenylene having 2 to 20 carbon atoms; substituted or unsubstituted linear or branched alkynylene having 2 to 20 carbon atoms; substituted or unsubstituted cycloalkylene having 3 to 12 carbon atoms; substituted or unsubstituted arylene having 6 to 40 carbon atoms; substituted or unsubstituted carbonyloxylene having 1 to 20 carbon atoms; or substituted or unsubstituted alkoxylene having 1 to 20 carbon atoms.
- R6, R7 and R8 are independently selected from the group consisting of hydrogen; halogen; substituted or unsubstituted linear or branched alkyl having 1 to 20 carbon atoms; substituted or unsubstituted linear or branched alkenyl having 2 to 20 carbon atoms; substituted or unsubstituted linear or branched alkynyl having 2 to 20 carbon atoms; substituted or unsubstituted cycloalkyl having 3 to 12 carbon atoms; substituted or unsubstituted aryl having 6 to 40 carbon atoms; substituted or unsubstituted alkoxy having 1 to 20 carbon atoms; and substituted or unsubstituted carbonyloxy having 1 to 20 carbon atoms.
- the substituted or unsubstituted aryl having 6 to 40 carbon atoms or the heteroaryl having 6 to 40 carbon atoms with an hetero element in Group 14, 15 or 16 is selected from the group consisting of the following functional groups; or may be other different aryl or heteroaryl groups:
- R'10 to R'18 are the same as or different from one another and independently selected from the group consisting of substituted or unsubstituted linear or branched alkyl having 1 to 20 carbon atoms; substituted or unsubstituted alkoxy having 1 to 20 carbon atoms; substituted or unsubstituted aryloxy having 6 to 30 carbon atoms; and substituted or unsubstituted aryl having 6 to 40 carbon atoms.
- At least one of the R1 to R4 of the formula 1 is a photoreactive group of the formula 1a or 1 b.
- at least one of R1 and R2 may be the photoreactive group.
- the use of the cyclic olefin compound enables the preparation of a photoreactive polymer having good characteristics such as alignment or the like.
- alkyl refers to a monovalent linear or branched saturated hydrocarbon portion having 1 to 20 carbon atoms, preferably 1 to 10 carbon atoms, more preferably 1 to 6 carbon atoms.
- the alkyl group inclusively refers to alkyl groups unsubstituted or additionally substituted with a specific substituent, which will be described later.
- the examples of the alkyl group may comprise methyl, ethyl, propyl, 2-propyl, n-butyl, iso-butyl, tert- butyl, pentyl, hexyl, dodecyl, fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, iodomethyl, bromomethyl, etc.
- alkenyl refers to a monovalent linear or branched hydrocarbon portion having 2 to 20 carbon atoms, preferably 2 to 10 carbon atoms, more preferably 2 to 6 carbon atoms with at least one carbon- carbon double bond.
- the alkenyl group may form a bonding through carbon atoms including a carbon-carbon double bond or through saturated carbon atoms.
- the alkenyl group inclusively refers to alkenyl groups unsubstituted or additionally substituted with a specific substituent, which will be described later.
- the examples of the alkenyl group may comprise ethenyl, 1-propenyl, 2- propenyl, 2-butenyl, 3-butenyl, pentenyl, 5-hexenyl, dodecenyl, etc.
- cycloalkyi refers to a monovalent saturated or unsaturated mono-, bi- or tri-cyclic non-aromatic hydrocarbon portion having 3 to 12 ring-carbon atoms.
- the cycloalkyi group inclusively refers to cycloalkyi groups additionally substituted with a specific substituent, which will be described later.
- the examples of the cycloalkyi group may comprise cyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl, cyclohexyl, cyclohexenyl, cycloheptyl, cyclooctyl, decahydronaphthalenyl, adamantyl, norbornyl (i.e., bicyclo[2,2,1]hept-5-enyl), etc.
- aryl refers to a monovalent mono-, bi- or tri-cyclic aromatic hydrocarbon portion having 6 to 40 ring-carbon atoms, preferably 6 to 12 ring-carbon atoms.
- the aryl group inclusively refers to aryl groups additionally substituted with a specific substituent, which will be described later.
- the examples of the aryl group may comprise phenyl, naphthalenyl, fluorenyl, etc.
- alkoxyaryl refers to the above-defined aryl group in which at least one hydrogen atom is substituted by an alkoxy group.
- the examples of the alkoxyaryl group may comprise methoxyphenyl, ethoxyphenyl, propoxyphenyl, butoxyphenyl, pentoxyphenyl, hextoxyphenyl, heptoxy, octoxy, nanoxy, methoxybiphenyl, methoxynaphthalenyl, methoxyfluorenyl, methoxyanthracenyl, etc.
- aralkyl refers to the above-defined alkyl group in which at least one hydrogen atom is substituted by an aryl group.
- the aralkyl group inclusively refers to aralkyl groups additionally substituted with a specific substituent, which will be described later.
- the examples of the aralkyl may comprise benzyl, benzhydryl, trityl, etc.
- alkynyl refers to a monovalent linear or branched hydrocarbon portion having 2 to 20 carbon atoms, preferably 2 to 10 carbon atoms, more preferably 2 to 6 carbon atoms with at least one carbon- carbon triple bond.
- the alkynyl group may form a bonding through carbon atoms including a carbon-carbon triple bond or through saturated carbon atoms.
- the alkynyl group inclusively refers to alkynyl groups additionally substituted with a specific substituent, which will be described later.
- the examples of the alkynyl group may comprise ethynyl, propynyl, etc.
- alkylene refers to a divalent linear or branched saturated hydrocarbon portion having 1 to 20 carbon atoms, preferably 1 to 10 carbon atoms, more preferably 1 to 6 carbon atoms.
- the alkylene group inclusively refers to alkylene groups additionally substituted with a specific substituent, which will be described later.
- the examples of the alkylene group may comprise methylene, ethylene, propylene, butylene, hexylene, etc.
- alkenylene refers to a divalent linear or branched hydrocarbon portion having 2 to 20 carbon atoms, preferably 2 to 10 carbon atoms, more preferably 2 to 6 carbon atoms with at least one carbon- carbon double bond.
- the alkenylene group may form a bonding through carbon atoms including a carbon-carbon double bond and/or through saturated carbon atoms.
- the alkenylene group inclusively refers to alkenylene groups additionally substituted with a specific substituent, which will be described later.
- cycloalkylene refers to a divalent saturated or unsaturated mono-, bi- or tri-cyclic non-aromatic hydrocarbon portion having 3 to 12 ring-carbon atoms.
- the cycloalkylene group inclusively refers to cycloalkylene groups additionally substituted with a specific substituent, which will be described later.
- the examples of the cycloalkylene group may comprise cyclopropylene, cyclobutylene, etc.
- arylene refers to a divalent mono-, bi- or tri-cyclic aromatic hydrocarbon portion having 6 to 20 ring-carbon atoms, preferably 6 to 12 ring-carbon atoms.
- the arylene group inclusively refers to arylene groups additionally substituted with a specific substituent, which will be described later.
- the aromatic portion includes carbon atoms only.
- the examples of the arylene may comprise phenylene, etc.
- aralkylene refers to a divalent portion of the above-defined alkyl group in which at least one hydrogen atom is substituted by an aryl group.
- the aralkylene group inclusively refers to aralkylene groups additionally substituted with a specific substituent, which will be described later.
- the examples of the aralkylene group may comprise benzylene, etc.
- alkynylene refers to a divalent linear or branched hydrocarbon portion having 2 to 20 carbon atoms, preferably 2 to 10 carbon atoms, more preferably 2 to 6 carbon atoms with at least one carbon- carbon triple bond.
- the alkynylene group may form a bonding through carbon atoms including a carbon-carbon triple bond or through saturated carbon atoms.
- the alkynylene group inclusively refers to alkynylene groups additionally substituted with a specific substituent, which will be described later.
- the examples of the alkynylene group may comprise ethynylene, propynylene, etc.
- a substituent is substituted or unsubstituted
- the examples of the substituent used as an additional substituent for each substituent may include halogen, alkyl, alkenyl, alkynyl, haloalkyl, haloalkenyl, haloalkynyl, aryl, haloaryl, aralkyl, haloaralkyl, alkoxy, haloalkoxy, carbonyloxy, halocarbonyloxy, aryloxy, haloaryloxy, silyl, siloxy, or "a polar functional group comprising oxygen, nitrogen, phosphor, sulfur, silicon, or boron" as mentioned above.
- the above-described cyclic olefin compound may be prepared by a typical method of introducing a defined substituent, more specifically, a photoreactive group of the formula 1a or 1 b on a cyclic olefin such as a norbornene-based compound.
- the synthesis of the cyclic olefin compound involves, for example, a condensation reaction of norbornene (alkyl)ol, such as norbornene methanol, and a carboxylic compound or the like having a photoreactive group of the formula 1a or 1 b.
- any other different methods can be used to introduce the photoreactive group and prepare the cyclic olefin compound.
- a photoreactive polymer comprising a repeating unit of the following formula 3a or 3b:
- This photoreactive polymer which comprises a repeating unit derived from the cyclic olefin compound, supports the formation of a large free volume between adjacent photoreactive groups owing to the bulky aralkyl structure connected to the ends of the photoreactive groups via a linker L.
- the photoreactive groups are relatively free to move (flow) or react in the secured large free volume.
- the photoreactive polymer can exhibit better excellences in photoreactivity, alignment rate, and photo-alignment.
- the photoreactive polymer has the photoreactive groups relatively ready to change the alignment direction according to the polarization direction, thereby acquiring readiness for change in the alignment direction depending on the polarization direction and preferably being applied to patterned retarders, patterned cell alignment layers, or the like.
- the photoreactive polymer may comprise a norbornene-based repeating unit of the formula 3a or 3b as a main repeating unit.
- the norbornene- based repeating unit is structurally rigid, and the photoreactive polymer comprising the norbornene-based repeating unit has a relatively high glass transition temperature Tg of about 300 ° C or above, preferably about 300 to 350 ° C , consequently with a higher thermal stability than the existing photoreactive polymers.
- the photoreactive polymer may comprise at least one repeating unit selected from the group consisting of the repeating units of the formula 3a or 3b, or may be a copolymer further comprising another type of repeating unit.
- the examples of the repeating unit may comprise any olefin-, acrylate- or cyclic- olefin-based repeating unit with or without a bonding to cinnamate-, chalcone- or azo-based photoreactive groups.
- the exemplary repeating units are disclosed in Korean Patent Laid-open Publication No. 2010-0021751.
- the photoreactive polymer may comprise the repeating unit of the formula 3a or 3b in an amount of at least about 50 mol%, more specifically about 50 to 100 mol%, preferably at least about 70 mol%.
- the repeating unit of the formula 3a or 3b constituting the photoreactive polymer has a degree of polymerization in the range of about 50 to 5,000, preferably about 100 to 4,000, more preferably about 1 ,000 to 3,000.
- the photoreactive polymer has a weight average molecular weight of 10,000 to 1000,000, preferably 20,000 to 500,000.
- the photoreactive polymer properly included in a coating composition for forming an alignment layer provides the coating composition with good coatability and the alignment layer formed from the coating composition with good liquid crystal alignment.
- the photoreactive polymer may be endowed with photoreactivity upon exposure to a polarized radiation having a wavelength of about 150 to 450 nm.
- the photoreactive polymer can exhibit excellences in photoreactivity and alignment upon exposure to polarized UV radiation having a wavelength of about 200 to 400 nm, more specifically about 250 to 350 nm.
- a method for preparing the photoreactive polymer comprises performing an addition polymerization reaction using a monomer represented by the formula 1 in the presence of a catalyst composition comprising a precatalyst containing a transition metal in
- the polymerization reaction may be carried out at a temperature of 10 to 200 ° C .
- the polymerization temperature below 10 ° C lowers the polymerization activity, while the temperature above 200 ° C undesirably causes a cleavage of the catalyst.
- the cocatalyst comprises at least one selected from the group consisting of a first cocatalyst providing a Lewis base capable of forming a weak coordinate bond with the metal of the precatalyst; and a second cocatalyst providing a compound comprising a Group 15 electron donor ligand.
- the cocatalyst may be a catalyst mixture comprising the first cocatalyst providing a Lewis base, and optionally the second cocatalyst providing a compound comprising a neutral Group 15 electron donor ligand.
- the catalyst mixture may comprise, based on one mole of the precatalyst, 1 to 1 ,000 moles of the first cocatalyst and 1 to 1 ,000 moles of the second cocatalyst.
- the excessively low content of the first or second cocatalyst causes a failure to provide the catalyst activity enough, while an excess of the first or second cocatalyst deteriorates the catalyst activity.
- the precatalyst comprising a Group 10 transition metal may be a compound having a Lewis base functional group that is readily leaving from the central transition metal by the first cocatalyst providing a Lewis base and participating in a Lewis acid-base reaction to help the central transition metal change into a catalyst active species.
- the first cocatalyst providing a Lewis base capable of forming a weak coordinate bond with the metal of the precatalyst may be a compound that readily reacts with a Lewis base to leave vacancies in the transition metal and forms a weak coordinate bond with a transition metal compound in order to stabilize the resultant transition metal; or a compound providing such a compound.
- the examples of the first cocatalyst may include borane (e.g., B(C 6 F 5 ) 3 ), borate (e.g., dimethylanilinium tetrakis(pentafluorophenyl)borate), alkylaluminum (e.g., methylaluminoxane (MAO) or AI(C 2 H 5 ) 3 ), transition metal halide (e.g., AgSbF 6 ), etc.
- the examples of the second cocatalyst that provides a compound comprising a neutral Group 15 electron donor ligand may include alkyl phosphine, cycloalkyl phosphine, or phenyl phosphine.
- the first and second cocatalysts may be used separately, or used together to form a single salt compound used as a compound for activating the catalyst.
- a compound prepared as an ion pair of alkyl phosphine and a borane or borate compound may be used separately, or used together.
- the above-described method may be used to prepare a repeating unit of the formula 3a and a photoreactive polymer according to an embodiment comprising the repeating unit.
- a photoreactive polymer further comprising an olefin- cyclic-olefin- or acrylate-based repeating unit
- typical preparation methods are used for forming each of the corresponding repeating units, which is then copolymerized with the repeating unit of the formula 3a prepared by the above-described method to form the photoreactive polymer.
- a photoreactive polymer comprising a repeating unit of the formula 2a may be prepared according to another example of the preparation method.
- the another exemplary preparation method comprises performing a ring-opening polymerization using a monomer of the formula 1 in the presence of a catalyst composition comprising a precatalyst containing a transition metal in Group 4, 6 or 8, and a cocatalyst to form a repeating unit of the formula 3b.
- the photoreactive polymer comprising a repeating unit of the formula 3b may be prepared by a method that comprises performing a ring-opening polymerization using norbornene (alkyl)ol, such as norbornene methanol, as a norbornene monomer in the presence of a catalyst composition comprising a precatalyst containing a transition metal in Group 4, 6 or 8, and a cocatalyst to form a ring-opened polymer with a 5- membered ring, and then introducing a photoreactive group on the ring-opened polymer to complete the photoreactive polymer.
- the introduction of the photoreactive group may be achieved using a condensation reaction of the ring- opened polymer with a carboxylate compound or an acyl chloride compound having a photoreactive group of the formula 1 a or 1 b.
- the ring-opening polymerization step may involve hydrogenation of the double bond of the norbornene ring included in the monomer of the formula 1 to open the norbornene ring, simultaneously beginning a polymerization reaction to prepare a repeating unit of the formula 3b and a photoreactive polymer comprising the repeating unit.
- polymerization and ring-opening reactions may occur in sequence to form the photoreactive polymer.
- the ring-opening polymerization may be carried out in the presence of a catalyst composition, which comprises a precatalyst containing a transition metal in Group 4 (e.g., Ti, Zr, or Hf), Group 6 (e.g., Mo, or W) or Group 8 (e.g., Ru, or Os); a cocatalyst providing a Lewis base capable of forming a weak coordinate bond with the metal of the precatalyst; and optionally a neutral Group 15 or 16 activator for improving the activity of the metal in the precatalyst.
- a catalyst composition which comprises a precatalyst containing a transition metal in Group 4 (e.g., Ti, Zr, or Hf), Group 6 (e.g., Mo, or W) or Group 8 (e.g., Ru, or Os); a cocatalyst providing a Lewis base capable of forming a weak coordinate bond with the metal of the precatalyst; and optionally a neutral
- a linear alkene such as 1 -alkene, 2-alkene, etc.
- controllable in molecular weight is added in an amount of 1 to 100 mol% with respect to the monomer to catalyze a polymerization reaction at 10 to 200 ° C .
- a catalyst comprising a transition metal in Group 4 (e.g., Ti, or Zr) or Groups 8 to 10 (e.g., Ru, Ni, or Pd) is added in an amount of 1 to 30 wt.% with respect to the monomer to catalyze a hydrogenation reaction on the double bond of the norbornene ring at 10 to 250 ° C .
- the excessively lower reaction temperature deteriorates the polymerization activity, and the excessively higher reaction temperature results in an undesirable cleavage of the catalyst.
- the lower hydrogenation temperature deteriorates the reaction activity, while the excessively high hydrogenation temperature causes a cleavage of the catalyst.
- the catalyst composition comprises one mole of a precatalyst containing a transition metal in Group 4 (e.g., Ti, Zr, or Hf), Group 6 (e.g., Mo, or W) or Group 8 (e.g., Ru, or Os); 1 to 100,000 moles of a cocatalyst providing a Lewis base capable of forming a weak coordinate bond with the metal of the precatalyst; and optionally 1 to 100 moles of an activator comprising a neutral Group 15 or 16 element for improving the activity of the metal of the precatalyst.
- a transition metal in Group 4 e.g., Ti, Zr, or Hf
- Group 6 e.g., Mo, or W
- Group 8 e.g., Ru, or Os
- 1 to 100,000 moles of a cocatalyst providing a Lewis base capable of forming a weak coordinate bond with the metal of the precatalyst
- an activator comprising a neutral Group 15 or 16 element
- the cocatalyst content less than one mole causes a failure in activation of the catalyst, and the cocatalyst content greater than 100,000 moles deteriorates the catalyst activity.
- the activator may be unnecessary depending on the type of the precatalyst.
- the activator content less than one mole ends up with a failure of the catalyst activation, while the activator content greater than 100 moles results in a lower molecular weight.
- the hydrogenation reaction fails to occur when the content of the catalyst comprising a transition metal of Group 4 (e.g., Ti, or Zr) or Group 8, 9 or 10 (e.g., Ru, Ni, or Pd) for hydrogenation reaction is less than 1 wt.% with respect to the monomer.
- the catalyst content greater than 30 wt.% undesirably results in a discoloration of the polymer.
- the precatalyst comprising a transition metal in Group 4 (e.g., Ti, Zr, or Hf), Group 6 (e.g., Mo, or W) or Group 8 (e.g., Ru, or Os) may refer to a transition metal compound, such as TiCI 4 , WCI 6 , MoCI 5 , RuC , or ZrCI 4 , having a functional group that is readily leaving from the central transition metal by the first cocatalyst providing a Lewis base and participating in a Lewis acid-base reaction to help the central transition metal change into a catalyst active species.
- a transition metal compound such as TiCI 4 , WCI 6 , MoCI 5 , RuC , or ZrCI 4 , having a functional group that is readily leaving from the central transition metal by the first cocatalyst providing a Lewis base and participating in a Lewis acid-base reaction to help the central transition metal change into a catalyst active species.
- the examples of the cocatalyst providing a Lewis base capable of forming a weak coordinate bond with the metal of the precatalyst may include borane, such as B((C 6 F5)3, or borate; or alkylaluminum, alkylaluminum halide or aluminum halide, such as methylaluminoxane (MAO), AI(C 2 H 5 )3, or AI(CH 3 )CI 2 .
- aluminum may be replaced by a substituent, such as lithium, magnesium, germanium, lead, zinc, tin, silicon, etc.
- the cocatalyst is a compound that readily reacts with a Lewis base to provide vacancies in the transition metal and forms a weak coordinate bond with the transition metal compound in order to stabilize the produced transition metal; or a compound providing such a compound.
- a polymerization activator is required or not.
- the examples of the activator comprising a neutral element in Group 15 or 16 may include water, methanol, ethanol, isopropyl alcohol, benzylalcohol, phenol, ethyl mercaptan, 2-chloroethanol, trimethylamine, triethylamine, pyridine, ethylene oxide, benzoyl peroxide, t-butyl peroxide, or the like.
- the catalyst comprising a transition metal in Group 4 (e.g., Ti, or Zr) or Group 8, 9 or 10 (e.g., Ru, Ni, or Pd) used for hydrogenation reaction may be prepared as a homogeneous form miscible with a solvent, or as a metal complex catalyst impregnated on a particulate support.
- the examples of the particulate support include silica, titania, silica/chromia, silica/chromia/titania, silica/alumina, aluminum phosphate gel, silanized silica, silica hydrogel, montmorillonite clay, or zeolite.
- the above-described method is used to prepare the repeating unit of the formula 3b and the photoreactive polymer of the embodiment comprising the repeating unit.
- the respective repeating units are first formed through the corresponding preparation methods and then copolymerized with a repeating unit of the formula 3b prepared by the above-described method to form the photoreactive polymer.
- an alignment layer comprising the above-described photoreactive polymer.
- the alignment layer may be of a thin film form or an alignment layer form.
- a liquid crystal retardation film comprising the alignment layer, and a liquid crystal layer on the alignment layer.
- the alignment layer and the liquid crystal retardation film may be prepared using known preparation methods with constituent components known to those skilled in the art, excepting that a photo-aligned polymer is used as the photoreactive polymer.
- the alignment layer is prepared by mixing the photoreactive polymer with a binder resin and a photo-initiator, dissolving the mixture in an organic solvent to obtain a coating composition, applying the coating composition on a base, and then curing the coating composition by UV exposure.
- the binder resin may be an acrylate-based resin, more specifically, pentaerythritol triarylate, dipentaerythritol hexaacrylate, trimethylolpropane triacrylate, tris(2-acryloyloxyethyl) isocyanurate, etc.
- the photo-initiator may be any typical photo-initiator known to be applicable to alignment layers without any limitations, such as, for example, Irgacure 907 or Irgacure 819.
- organic solvent may include toluene, anisole, chlorobenzene, dichloroethane, cyclohexane, cyclopentane, propylene glycol, methyl ether, acetate, etc.
- organic solvent may also be used without any limitations, because the photoreactive norbornene-based copolymer has a good solubility in various organic solvents.
- the content of the solid components comprising the binder resin and the photo-initiator may be in the range of 1 to 15 wt.%, preferably 10 to 15 wt.% to cast the alignment layer into films, or 1 to 5 wt.% to cast the alignment layer into thin films.
- the alignment layer may be formed, for example, on a support as shown in FIG. 1 , or under liquid crystals to achieve liquid crystal alignment.
- the base may be a cyclic polymer base, an acryl polymer base, or a cellulose polymer base.
- the coating composition is applied on the base by different methods, such as bar coating, spin coating, blade coating, etc. and then cured under UV exposure to form an alignment layer.
- the UV curing causes photo-alignment, in which step a polarized UV radiation having a wavelength of about 150 to 450 nm is applied to bring about alignment.
- the exposure intensity of the radiation is about 50 mJ/cm 2 to 10 J/cm 2 , preferably, about 500 mJ/cm 2 to 5 J/c m 2 .
- the UV radiation as used herein may be any UV radiations polarized by passing through or being reflected from (a) a polarizer using a dielectric anisotropic coating on the surface of a transparent substrate such as quartz glass, soda-lime glass, soda-lime-free glass, or the like; (b) a polarizer with fine aluminum or other metallic wires; or (c) a Brewster polarizer using reflection from quartz glass.
- the substrate temperature during UV exposure is preferably the room temperature. Under circumstances, the substrate may be heated at 100 ° C or below during UV exposure. Preferably, the final layer thus obtained from the above-described steps has a thickness of about 30 to 1 ,000 pm.
- the alignment layer or the liquid crystal retardation film is applicable to optical films or filters used to create stereoscopic images.
- a display device comprising the alignment layer.
- the display device may be a liquid crystal display device comprising the alignment layer for liquid crystal alignment; or a stereoscopic imaging display device included in optical films or filters to create stereoscopic images.
- the constituent components of the display device are the same as those of a typical display device, excepting that the photoreactive polymer and the alignment layer are included, and will not be described any more in further detail.
- Example 2 Preparation of 4-benzyloxy-cinnamate-5-methyl norbornene (cyclic olefin compound) [128] The procedures were performed in the same- manner as described in Example 1 , excepting that norbornene-5-methanol was used instead of norbornene-5-ol to prepare 4-benzyloxy-cinnamate-5-methyl norbornene.
- Example 30 Preparation of 4-(4-trifluoromethyl)-benzyloxy- cinnamate-5-ethyl norbornene (cyclic olefin compound)
- Example 39 Polymerization of 4-(4-fluoro-benzyloxy)-cinnamate- 5-ethyl norbornene
- Example 40 Polymerization of 4-(4-methyl-benzyloxy)- cinnamate-5-norbornene
- Example 42 Polymerization of 4-(4-methyl-benzyloxy)- cinnamate-5-ethyl norbornene
- Example 43 Polymerization of 4-(4-methoxy-benzyloxy)- cinnamate-5-norbornene
- Example 45 Polymerization of 4-(4-methoxy-benzyloxy)- cinnamate-5-ethyl norbornene
- Example 46 Polymerization of 4-(2-naphthalene-methyloxy)- cinnamate-5-norbornene
- Example 48 Polymerization of 4-(2-naphthalene-methyloxy)- cinnamate-5-ethyl norbornene
- Example 50 Polymerization of 4-(4-methylketone benzyloxy)- cinnamate-5-methyl norbornene
- Example 51 Polymerization of 4-(4-methylketone benzyloxy)- cinnamate-5-ethyl norbornene
- Example 52 Polymerization of 4-(1 -phenyl perfluoroheptyloxy)- cinnamate-5-norbornene
- Example 54 Polymerization of 4-(1 -phenyl perfluoroheptyloxy)- cinnamate-5-ethyl norbornene
- Example 57 Polymerization of 4-(4-benzyloxy)-benzyloxy- cinnamate-5-ethyl norbornene
- Example 58 Polymerization of 4-(4-fluoro-phenyloxy)-benzyloxy- cinnamate-5-norbornene
- Example 61 Polymerization of 4-(4-trifluoromethyl)-benzyloxy- cinnamate-5-norbornene
- Example 62 Polymerization of 4-(4-trifluoromethyl)-benzyloxy- cinnamate-5-methyl norbornene
- Example 64 Polymerization of 4-(4-bromo-benzyloxy)-cinnamate- 5-norbornene
- Example 68 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-Benzyloxy-Cinnamate-5- Methyl Norbornene
- Example 69 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-Benzyloxy-Cinnamate-5- Ethyl Norbornene
- Example 70 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(4-Fluoro-Benzyloxy)-
- Example 71 Polymer Preparation Using Ring-Opening
- Example 72 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(4-Fluoro-Benzyloxy)- Cinnamate-5-Ethyl Norbornene
- Example 73 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(4-Methyl-Benzyloxy)- Cinnamate-5-Norbornene
- Example 74 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(4-Methyl-Benzyloxy)- Cinnamate-5-Methyl Norbornene
- Example 76 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(4-Methoxy-Benzyloxy)-
- Example 79 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(2-Naphthalene- Methyloxy)-Cinnamate-5-Norbornene
- Example 80 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(2-Naphthalene- Methyloxy)-Cinnamate-5-Methyl Norbornene
- Example 81 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(2-Naphthalene- Methyloxy)-Cinnamate-5-Ethyl Norbornene
- Example 82 Polymer Preparation Using Ring-Opening
- Example 16 The procedures were performed in the same manner as described in Example 67, excepting that 4-(4-methylketone benzyloxy)- cinnamate-5-norbornene (50 mmol) of Example 16 was used as a monomer instead of 4-benzyloxy-cinnamate-5-norbornene of Example 1 to form a polymer
- Example 83 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(4-Methylketone
- Example 84 Polymer Preparation Using Ring-Opening
- Example 19 The procedures were performed in the same manner as described in Example 67, excepting that 4-(1 -phenyl perfluoroheptyloxy)- cinnamate-5-norbornene (50 mmol) of Example 19 was used as a monomer instead of 4-benzyloxy-cinnamate-5-norbornene of Example 1 to form a polymer
- Example 86 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(1 -Phenyl Perfluoroheptyloxy)-Cinnamate-5-Methyl Norbornene
- Example 87 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(1 -Phenyl Perfluoroheptyloxy)-Cinnamate-5-Ethyl Norbornene
- Example 88 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(4-Benzyloxy)-Benzyloxy- Cinnamate-5-Norbornene
- Example 90 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(4-Benzyloxy)-Benzyloxy-
- Example 67 The procedures were performed in the same manner as described in Example 67, excepting that 4-(4-fluoro-phenyloxy)-benzyloxy- cinnamate-5-norbornene (50 mmol) of Example 25 was used as a monomer instead of 4-benzyloxy-cinnamate-5-norbornene of Example 1 to form a polymer
- Example 93 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(4-Fluoro-Phenyloxy)- Benzyloxy-Cinnamate-5-Ethyl Norbornene
- Example 94 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(4-Trifluoromethyl)- Benzyloxy-Cinnamate-5-Norbornene
- Example 95 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(4-Trifluoromethyl)- Benzyloxy-Cinnamate-5-Methyl Norbornene
- Example 97 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(4-Bromo-Benzyloxy)- Cinnamate-5-Norbornene
- Example 98 Polymer Preparation Using Ring-Opening Methathesis Polymerization and Hydrogenation of 4-(4-Bromo-Benzyloxy)- Cinnamate-5-Methyl Norbornene
- the bar-coated film was dried at 80 ° C for 2 min. and exposed to polarized UV radiation. To ascertain that the director orientation of liquid crystals is changed, the cured alignment layer half covered was rotated by 90 degrees and exposed to the polarized UV radiation again. The exposure amount of the polarized UV radiation was regulated by the exposure time.
- A-plate liquid crystal 25 wt.% in toluene was put dropwise on the alignment layer for bar coating, dried at 60 ° C for 2 min. and exposed to 20 mJ of UV radiation for curing.
- FIG. 2 shows the images of alignment layers, that is, a first oriented alignment layer (45 ) before 90-degree rotation and a second oriented alignment layer (135 ) after 90-degree rotation between polarizers.
- the left-sided picture of FIG. 2 shows the alignment layer using the polymer of Comparative Example 3 (monomer: Comparative Example 1 ) as a photo- aligned substance after the second alignment, the right-sided picture showing the alignment layer using the polymer of Example 39 (monomer: Example 6) as a photo-aligned substance after the second alignment.
- the pictures were taken of the films between two crossed polarizers.
- the alignment layer using the polymer of Comparative Example 3 hardly had a change in the alignment direction upon a change of the polarization direction during the second alignment, causing alignment errors.
- the alignment layer using the polymer of Example 39 was ready to change the alignment direction upon a change of the polarization direction during the second alignment, acquiring a good image.
- the reason of this result seems likely to be that the bulky aralkyl structure at the ends of the photoreactive groups in the polymer of the Example 39 supports the formation of a large free volume between adjacent photoreactive groups, thereby providing the alignment layer with readiness for change in the alignment direction according to the polarization direction as well as excellences in photoreactivity, alignment, and alignment rate.
- the first and second leftmost graphs show the change of anisotropy after first and second alignments using a two-second exposure
- the third and fourth graphs, the fifth and sixth graphs, the seventh and eighth graphs, and ninth and tenth graphs show the change of anisotropy after first and second alignments using three-second, five-second, ten-second and thirty-second exposures, respectively.
- the alignment layer using the polymer of Comparative Example 4 had an insignificant change of anisotropy under UV radiation, consequently with poor alignment.
- the alignment layer using the polymer of Comparative Example 3 had a little change of anisotropy after the first alignment, with a considerably great drop in the absolute value of anisotropy after the second alignment. This means that the change of anisotropy after the second alignment is not easy to achieve, thereby possibly causing alignment errors when liquid crystals are put dropwise on the alignment layer.
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- 2011-09-26 JP JP2013509010A patent/JP2013525590A/ja active Pending
- 2011-09-26 EP EP11829526.0A patent/EP2547641A4/en not_active Withdrawn
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- 2011-09-26 WO PCT/KR2011/007059 patent/WO2012044020A2/en active Application Filing
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Cited By (6)
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JP2015529343A (ja) * | 2012-08-21 | 2015-10-05 | エルジー・ケム・リミテッド | 光学フィルムおよびこれを含む表示素子 |
US9952364B2 (en) | 2012-08-21 | 2018-04-24 | Lg Chem, Ltd. | Optical film and display device comprising the same |
CN104619733A (zh) * | 2012-09-07 | 2015-05-13 | Lg化学株式会社 | 光取向聚合物、取向层及包含其的液晶延迟膜 |
JP2016535158A (ja) * | 2013-09-30 | 2016-11-10 | エルジー・ケム・リミテッド | 光反応基を有する環状オレフィン化合物および光反応性重合体 |
US9982071B2 (en) | 2013-09-30 | 2018-05-29 | Lg Chem, Ltd. | Cyclic olefin compound having photoreactive group and photoreactive polymer |
EP3196236A4 (en) * | 2014-12-18 | 2018-04-25 | LG Chem, Ltd. | Vertical alignment film comprising (co)polymer of cyclic olefin compound |
Also Published As
Publication number | Publication date |
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EP2547641A2 (en) | 2013-01-23 |
KR101300726B1 (ko) | 2013-08-27 |
US9151988B2 (en) | 2015-10-06 |
US20120076954A1 (en) | 2012-03-29 |
KR20120044883A (ko) | 2012-05-08 |
JP6027597B2 (ja) | 2016-11-16 |
US20150093520A1 (en) | 2015-04-02 |
EP2547641A4 (en) | 2014-05-07 |
TW201240945A (en) | 2012-10-16 |
JP2013525590A (ja) | 2013-06-20 |
TWI450876B (zh) | 2014-09-01 |
US8946366B2 (en) | 2015-02-03 |
CN103119004A (zh) | 2013-05-22 |
WO2012044020A3 (en) | 2012-06-14 |
JP2015071621A (ja) | 2015-04-16 |
KR20120069652A (ko) | 2012-06-28 |
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